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Finding the Fourth Proportional to 134,471.84, 185,575.60 and 74,046.96

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Solution

The fourth proportional to 134,471.84, 185,575.60 and 74,046.96 is: 102,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,471.84 : 185,575.60 = 74,046.96 : x
  2. Step 2: Convert to fraction form
    134,471.84/185,575.60 = 74,046.96/x
  3. Step 3: Cross multiply
    134,471.84x = 185,575.60 × 74,046.96
  4. Step 4: Simplify right side
    134,471.84x = 13,741,309,030.18
  5. Step 5: Solve for x
    x = 13,741,309,030.18/134,471.84
  6. Step 6: Final answer
    x = 102,187.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.